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EP1076195B1 - Dispositif d'arrêt - Google Patents

Dispositif d'arrêt Download PDF

Info

Publication number
EP1076195B1
EP1076195B1 EP00112839A EP00112839A EP1076195B1 EP 1076195 B1 EP1076195 B1 EP 1076195B1 EP 00112839 A EP00112839 A EP 00112839A EP 00112839 A EP00112839 A EP 00112839A EP 1076195 B1 EP1076195 B1 EP 1076195B1
Authority
EP
European Patent Office
Prior art keywords
shut
friction brake
friction
stop
actuator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00112839A
Other languages
German (de)
English (en)
Other versions
EP1076195A2 (fr
EP1076195A3 (fr
Inventor
Alfred Hettel
Axel Obermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Schweiz AG
Original Assignee
Siemens Schweiz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Schweiz AG filed Critical Siemens Schweiz AG
Publication of EP1076195A2 publication Critical patent/EP1076195A2/fr
Publication of EP1076195A3 publication Critical patent/EP1076195A3/fr
Application granted granted Critical
Publication of EP1076195B1 publication Critical patent/EP1076195B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0686—Braking, pressure equilibration, shock absorbing
    • F16K31/0689—Braking of the valve element

Definitions

  • the invention relates to a shut-off with a shut-off, which is movable by a drive between stops, as known for example from DE-U-6610392.
  • shut-off devices including shut-off valves, which are esp. Electromagnetically driven, often arise when opening and closing noise, which are often referred to as "valve rattle".
  • valve rattle opening and closing noise
  • the shut-off including valve plate, often made of rubber-elastic material or provided with a damping coating, such sounds are often unavoidable; they are escpecially along the lines that they close or open, often passed to points where such sounds are perceived as extremely disturbing.
  • the invention has for its object to avoid by simple means the noise when operating such shut-off or at least substantially reduce.
  • a friction brake is movable with the shut-off, which slows down the movement of the shut-off shortly before hitting the corresponding stop something, so that the shut-off abuts only with reduced force on the stop. Therefore, the friction brake should each come into effect a friction distance well before the time at which the shut-off reaches the relevant stop.
  • the function of the friction brake is that it drives along a friction surface along the friction path when moving the shut-off.
  • This friction surface can be formed for example by the shaft of the shut-off, which connects this with the drive.
  • the friction surface may also be formed by the inner wall of a housing, in which a drive body for the shut-off is moved along.
  • the noise is determined by special design of the frictional force between friction brake and friction surface, so esp. By the material of the friction brake and the surface texture of the friction surface. In some cases, it is advisable to realize the friction surface by a thin coating on the relevant unit.
  • the locking body should be connected to the stop for the shut-off in its open position.
  • the locking body with the shut-off itself - connected; It is advisable to provide the drive body for the shut-off with surfaces which act as a locking body.
  • the friction body can be formed in the simplest way as a ring. Depending on the design conditions, however, a friction brake may also be recommended, which has two stop flanges esp. At the ends.
  • thermoplastic homopolymers in particular polyoxymethylene (POM) is recommended.
  • the drive has an electromagnetically active armature as an electromagnetically actuated drive body.
  • the drive body should counteract a spring, so that in the absence of actuation of the drive, the spring pushes the shut-off in the closed position, for example, the valve seat, while for lifting and opening the shut-off the electrical coil of the electromagnetic drive is energized, so that their electromagnetic field Anchor moves while pulling the shut-off from the closed to an open position.
  • the extent or stroke of lifting the shut-off of the valve seat is limited by another stop.
  • the closing force of the obturator is generated by the spring and the opening force by the electromagnetic drive.
  • the shut-off body 2 is pressed by means of a coil spring 4 on the edge of a line 1, which generates the closing force and is supported on an annular hub of a stop ring 5.
  • the hub also simultaneously forms a blocking body 5a for the friction brake 6.
  • the upper stop flange 6a of the friction brake 6 is pressed against the blocking body 5a due to the closing force of the spring 4.
  • the yarn-like friction brake 6 consists of thermoplastic homopolymers , in particular polyoxymethylene (POM) and is clamped at the lower end by means of a clamping ring 7 on the shaft 3c of the shut-off body 2, which connects the latter with an armature 3, which is electromagnetically effective as a drive body.
  • the shaft 3c is surrounded by a coating which forms the friction surface 3a for the inner circumferential surface of the friction brake 6, as described below.
  • the shut-off body 2 made of a rubber-elastic part, made e.g.
  • the friction brake 6 In order to avoid noise, the friction brake 6 according to Figure 2 then comes into operation when the shut-off body 2 is only a friction distance R1 far away from the stop 5b. At this moment, namely, the lower stop flange 6b applies to the annular hub, which serves as a blocking body 5a. If the friction brake 5 were immovably connected to the shaft 3c, the shut-off body 2 could not reach its blocking position. In order to make this possible, although the force of the drive body 3 presses the locking body from the position of Figure 2 in the locked position of Fig. 3. The friction brake rubs along the friction surface 3 a, whereby the abutment forces of the shut-off 2 are substantially reduced at the stop 5 b , By this on the last part of the movement distance, i.
  • the spring 4 presses the shut-off body 2 from the position of FIG. 3 via the position of FIG. 4 back into the closed position of FIG. 1. Also on this movement path along the stroke H, shortly before reaching the stop 1a again covered by the shut-off body 2 a friction distance R2, in which the friction brake 6 again, this time in the reverse direction in function, when the upper stop flange 6a has arrived at the locking body 5a.
  • the friction force of the friction brake counteracts these forces and thereby dampens the impact on the valve seat.
  • the closing operation can be divided into three phases, namely in a first phase and in a third phase, in which the friction brake is not active, while the friction brake in a phase in between function.
  • the annular friction brake 6 is in the space between the main part of the cylindrical drive body 3 and connected via the shaft 3c with this likewise cylindrical auxiliary part 3b at the end face.
  • the downwardly facing surface of the auxiliary part 3b serves as a blocking body 3e as well as the upper end face of the main part of the drive body 3 serves as a blocking body 3d for the friction brake 6, if this along the friction surface 8a from the position shown in Figure 5 via Figure 6 in the Figure 7 shown position and is moved back from this position over the position of Figure 8 in the closed position of the shut-off of Figure 5.
  • the friction takes place between the cylindrical outer wall of the friction brake 6 and the cylindrical inner surface of the housing 8 serving as the friction surface 8a.
  • the distance of the locking bodies 3d and 3e and the thickness of the annular friction brake 6 determine the time at which they reach the closing or opening movement inhibiting or braking function begins.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Magnetically Actuated Valves (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Details Of Valves (AREA)
  • Dowels (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Claims (11)

  1. Dispositif d'arrêt avec un corps d'arrêt (2) déplaçable entre des butées (1a, 5b) par un entraînement, caractérisé en ce qu'un frein à friction (6) est déplaçable avec le corps d'arrêt (2) entre des corps de blocage (5a, 3d, 3e), sur lesquels le frein à friction (6), arrive respectivement à une distance d'un intervalle de friction (R1, R2) avant le moment où le corps d'arrêt (2) atteint sa butée concernée (1a, 5b), et en ce que le frein à friction (6) frotte sur une surface de friction (3a, 8a) lors du déplacement du corps d'arrêt (2) le long de l'intervalle de friction (R1, R2).
  2. Dispositif d'arrêt selon la revendication 1, caractérisé en ce que le corps de blocage (5a) est relié à la butée (5b) pour le corps d'arrêt (2) dans la position ouverte de ce dernier.
  3. Dispositif d'arrêt selon la revendication 1, caractérisé en ce que le corps de blocage (3, 3b) est relié au corps d'arrêt (2).
  4. Dispositif d'arrêt selon l'une quelconque des revendications précédentes, caractérisé en ce que la surface de friction (3a) est formée par la tige (3c) du corps d'arrêt (2) resp. par un revêtement entourant la tige (3c), qui relie celui-ci à l'entraînement.
  5. Dispositif d'arrêt selon l'une quelconque des revendications précédentes, caractérisé en ce que la surface de friction (8a) est formée par la paroi intérieure d'un boîtier (8), dans et le long de laquelle paroi intérieure un corps d'entraînement (3) de l'entraînement est déplaçable.
  6. Dispositif d'arrêt selon l'une quelconque des revendications précédentes, caractérisé en ce que le frein à friction (6) est formé comme un anneau.
  7. Dispositif d'arrêt selon l'une quelconque des revendications précédentes, caractérisé en ce que le frein à friction (6) présente deux brides de butée (6a, 6b).
  8. Dispositif d'arrêt selon l'une quelconque des revendications précédentes, caractérisé en ce que le frein à friction (3) est composé d'homopolymères thermoplastiques, notamment de polyoxyméthylènes (POM).
  9. Dispositif d'arrêt selon l'une quelconque des revendications précédentes, caractérisé en ce que l'entraînement présente un induit fonctionnant électromagnétiquement comme corps d'entraînement (3).
  10. Dispositif d'arrêt selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un ressort (4) agit à l'encontre du corps d'entraînement (3).
  11. Dispositif d'arrêt selon l'une quelconque des revendications précédentes, caractérisé en ce que le corps d'arrêt (2) est formé comme un corps de vanne élastique d'une vanne d'arrêt.
EP00112839A 1999-08-10 2000-06-17 Dispositif d'arrêt Expired - Lifetime EP1076195B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19937627A DE19937627A1 (de) 1999-08-10 1999-08-10 Absperrorgan
DE19937627 1999-08-10

Publications (3)

Publication Number Publication Date
EP1076195A2 EP1076195A2 (fr) 2001-02-14
EP1076195A3 EP1076195A3 (fr) 2002-09-04
EP1076195B1 true EP1076195B1 (fr) 2006-02-01

Family

ID=7917782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00112839A Expired - Lifetime EP1076195B1 (fr) 1999-08-10 2000-06-17 Dispositif d'arrêt

Country Status (8)

Country Link
US (1) US6318702B1 (fr)
EP (1) EP1076195B1 (fr)
JP (1) JP2001065735A (fr)
CN (1) CN1182335C (fr)
AT (1) ATE317083T1 (fr)
BR (1) BR0003455A (fr)
DE (2) DE19937627A1 (fr)
PL (1) PL192781B1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1406036B1 (fr) * 2001-07-10 2008-01-16 Nidec Sankyo Corporation Dispositif de commande de soupape
US7516941B2 (en) * 2005-10-11 2009-04-14 Elkhart Brass Manufacturing Company, Inc. Valve with actuation sub-assembly
US20080197311A1 (en) * 2007-02-12 2008-08-21 Elkhart Brass Manufacturing Company, Inc. Adjustable mechanical device for controlling valve closure speed
JP5573702B2 (ja) * 2011-01-26 2014-08-20 トヨタ自動車株式会社 電磁式リニア弁
US9677679B2 (en) * 2013-06-26 2017-06-13 Dresser, Inc. Valve with force generating element

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE131780C (fr)
DE1136175B (de) * 1960-10-13 1962-09-06 Georg Weisheit Ventil mit elektromotorischem Antrieb und Daempfungseinrichtung
AT274501B (de) * 1966-12-13 1969-09-25 Kromschroeder Ag G Elektromagnetisch betätigtes Ventil
DE1299966B (de) * 1967-06-28 1969-07-24 Thomas Fa Robert Regelventil mit Magnetantrieb und Daempfungseinrichtung
DE1614744C3 (de) * 1967-12-07 1974-05-09 Runtal Holding Co., S.A., Neuenburg (Schweiz) Wechselstrom- Elektromagnet in geschlossenem Gehäuse mit einstellbarer Bewegungsverzögerung
DE6610392U (de) * 1967-12-07 1973-11-29 Runtal Holding Co Sa Elektromagnet-system als steuervorrichtung fuer ventile.
DD131780A1 (de) * 1977-04-25 1978-07-19 Hoffmann Ulf Rainer Bremseinrichtung fuer federrueckstellende ventile
DE3210768C2 (de) * 1982-03-24 1990-07-12 Bopp & Reuther Gmbh, 6800 Mannheim Sicherheitsventil mit einer Reibeinrichtung zum Unterdrücken von Ventilschwingungen
US4890641A (en) * 1988-12-06 1990-01-02 Teledyne Inc., Teledyne Farris Eng. Div. Frictional damper suitable for pressure relief valves
US5039060A (en) * 1990-02-01 1991-08-13 Westinghouse Electric Corp. Control valve vibration damper/isolator
DE4332117B4 (de) * 1993-09-22 2005-05-04 Robert Bosch Gmbh Elektromagnetventil
KR100248332B1 (ko) * 1995-12-23 2000-04-01 정몽규 차량의 흡/배기밸브용 개폐장치
DE29703584U1 (de) * 1997-02-28 1998-06-25 FEV Motorentechnik GmbH & Co. KG, 52078 Aachen Elektromagnetischer Aktuator mit Fluid-Auftreffdämpfung
DE19743081A1 (de) * 1997-09-30 1999-04-01 Bayerische Motoren Werke Ag Elektromagnetischer Aktuator zur Steuerung eines Hubventils, insbesondere Gaswechselventil einer Brennkraftmaschine

Also Published As

Publication number Publication date
ATE317083T1 (de) 2006-02-15
EP1076195A2 (fr) 2001-02-14
DE19937627A1 (de) 2001-02-15
CN1182335C (zh) 2004-12-29
DE50012145D1 (de) 2006-04-13
US6318702B1 (en) 2001-11-20
BR0003455A (pt) 2001-06-12
EP1076195A3 (fr) 2002-09-04
PL341807A1 (en) 2001-02-12
JP2001065735A (ja) 2001-03-16
CN1287236A (zh) 2001-03-14
PL192781B1 (pl) 2006-12-29

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